Big Thrills will add 40 new stages from the developer, as well as a selection of ten tracks created by users.
"Ever since we released the first Trials HD expansion, gamers have demanded more," said creative director Antti Ilvessuo.
"They email us every day, they post on our message boards, and lately they've started calling my house and chasing me down the street. With this announcement, I can now emerge from hiding and get back to making games."
First expansion BIG Pack was released late last year.
> Click here for our review of Trials HD